I started by using the method described here in order to create a Mobile redirect, and it works perfectly.
What I need to do next, however, is prevent it from happening on any page other than the homepage. In other words: If the user loads the homepage from a mobile device, the redirect should happen - but if they load any other page from a mobile device, the redirect should not occur.
I'd love any advice the community might be able to provide as to how to accomplish this effectively.